import sys
from collections import defaultdict


S = set()
B = set()
P = dict()
Q = defaultdict(list)

for l in sys.stdin.read().splitlines():
    (_,_,X,Y,_,_,_,_,A,J) = l.split(" ")
    x = int(X[2:-1])
    y = int(Y[2:-1])
    a = int(A[2:-1])
    b = int(J[2:])
    S.add((x,y))
    B.add((a,b))
    P[(x,y)] = (a,b)
    Q[(a,b)].append((x,y))

if False:
    print("digraph G {")
    print("overlap = false;")
    def toid(x):
        (x,y) = x
        return str(x).replace("-","m")+"_"+str(y).replace("-","m")
    for (k,v) in P.items():
        print("S_"+toid(k), "->", "B_"+toid(v),";")
    print('}')

if True:
    print("digraph G {")
    print("overlap = false;")
    def toid(x):
        (x,y) = x
        return str(x).replace("-","m")+"_"+str(y).replace("-","m")
    for (k,V) in Q.items():
        for v in V:
            print("B_"+toid(k), "->", "C_"+toid(v),";")
    print('}')